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| Math Central | Quandaries & Queries |
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What is a better way to express 400 in 7.5 billion? |
Hi Emma,
You have 400 in 7,500,000,000. If you divide both by 100 that's 4 in 75,000,000. Now dividing both by 4 you get 1 in 18,750,000. Thus you daughter's condition affects 1 in 18.75 million.
Penny
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